Vini Jr would be a very big boost for real Madrid in their UCL match against Atlanta. The Madrid team hasn't been in Great form even if they had Vini Jr in all those matches but they still struggle and a loss to Atlanta may spell doom for them in the UCL this season.
Real Madrid are not the team they were last season on my opinion, the introduction of kylian Mbappe hasn't really beared fruit. The UCL this season also put every team to the test, there is no luck this time around and I think previously real Madrid has had some very easy group stage teams that always ended up with them qualifying. This new UCL format is there to test them and every other team.
Even without Vinicius, Real Madrid is still one of the strongest teams at the moment and Bellingham is still playing great and can single-handedly make a result like in the last match against Girona, when he scored such an important goal for Real and after that Girona offered almost no resistance.
The odds on Real's victory are 2.6 and it's been a long time since there were such odds and if you combine it with Liverpool's victory with odds of 1.45, you can get a very good final odds.
Atatalanta have a good streak of games without defeat, but Real are known for being able to beat any team that seems impossible to beat, like Manchester City last season.
Odds @2.6 for Real Madrid's victory is quite risky to bet on, I think we shouldn't be tempted just because we see the odds for betting options.
Now let's be realistic, seeing the strength of both teams in the last few matches, there is clearly a difference in performance between Atalanta and Real Madrid right now, Atalanta who are in their best form and Real Madrid who are slumping and have not been able to fully recover until now.
Atalanta will play at home, so I think they have a greater percentage of being able to win the match or hold Real Madrid to a draw.
And for Vinicius' absence, it is indeed very influential, it must be admitted because Mbappe cannot fill the void that exists and for Bellingham he has a different position and task, so you can't just rely on Bellingham to cover the void in the front line left by Vinicius.